Modern Xiaomi and Redmi smartphones come with a variety of features that collect user data, and one of the most sensitive is audio recording. Many device owners are wondering how to turn off the microphone on Xiaomi to ensure maximum privacy and prevent listening through third-party apps, which is especially true in the era of digital assistants and aggressive ad targeting.
Complete hardware shutdown of the microphone by software is impossible, as it is necessary for the basic functions of calls and voice recorders, but the system MIUI and HyperOS provide powerful tools for access control. Proper permissions and the use of special security features to minimize the risk of audio leakage. In this article, we will discuss all available methods of managing the microphone, from simple switches to deep configuration of the system.
Understanding how the MIUI-based Android permissions work is the first step to digital hygiene, so you can identify which apps have access to sound and block suspicious processes, not only protecting your privacy, but also benefiting from the autonomy of the device, as the background recording consumes the CPU.
Basic permission settings in MIUI and HyperOS
The first and most obvious way to restrict access to the microphone is to manually control permissions for each application installed. MIUI allows you to flexibly configure access rights, preventing specific programs from using audio input. This is a fundamental layer of protection that must be configured on every smartphone.
To start, you need to go to the settings menu and find the privacy section, and here you will see the full list of applications that have requested or are using the microphone, and it is recommended to check this list regularly, as new programs can automatically request access to the sound on the first run.
Note Xiaomi’s system apps and services, which can have constant access to the microphone to run the Google Assistant or XiaoAI. If you don’t use voice control, access is better restricted. It’s also worth checking messengers and social networks: they only need a microphone when calling or recording voice messages, but not in the background.
- 🔍 Open Settings and go to Privacy Protection.
- 📱 Select permissions management and find the category Microphone.
- 🚫 Disable access for applications that do not require constant sound recording.
- ⚙️ Set Ask Mode for questionable programs to get notified on each request.
It's important to understand the difference between "Allowed" and "Ask" modes: the first gives the carte blanche app to use the microphone any time it's running; the second mode forces the system to request your confirmation each time, making the process transparent to the user.
⚠️ Warning: If you turn off microphone access for system applications such as Phone or Recorder, they will no longer function properly.
Use of the Privacy Indicator and Access Log
Starting with Android 12 and MIUI 13/14 and HyperOS, the system has a built-in privacy indicator, a small icon (usually a green dot or microphone in the corner of the screen) that lights up every time an app uses a microphone, and it is an effective tool for detecting hidden surveillance.
When you see an active indicator, you can instantly know which program is currently recording sound, and you just click on the icon or swipe down to open the notification bar, and the system will show the name of the application and the time of last access.
The sensitive data log stores the history of the last 24 hours or 7 days, allowing you to analyze the behavior of installed programs. If you notice that a flashlight application or calculator was accessing the microphone in the background, this is a clear sign of malicious activity or poor optimization.
- 🟢 Green dot in status bar signals active sound recording.
- 📜 Journal available in Settings → Protection of confidentiality → Access journal.
- 🛑 Clicking on the application in the journal, you can immediately go to managing its permissions.
- 🔔 Enable access notifications to receive background alerts.
Using an indicator helps you quickly respond to suspicious activity, for example, if you are silent and the indicator lights up, then some process is trying to listen to you, in such cases it is better to immediately restrict access rights or delete the application.
⚠️ Note: The indicator may not be displayed for some system processes with higher privileges, so the absence of a point does not guarantee 100% no record, but significantly increases the transparency of the system operation.
Disabling voice assistants and voice activation
The main consumers of microphone traffic in the background are voice assistants. On Xiaomi smartphones, it can be Google Assistant or built-in XiaoAI (for Chinese versions of firmware).
To turn off the microphone completely in this context, you need to turn off the voice activation function, which will not remove the assistant, but will prevent him from listening to the air while waiting for the command, you can still call the assistant with a button or a swipe, but the background recording will stop.
To disable Google Assistant, you need to go to the settings of the Google app itself, and you should find the Voice Control section and remove the box from the "OK, Google" item, which is the same for any other voice assistant installed on the device.
- 🗣️ Open Google Settings and select Voice Control.
- ❌ Turn off the access option with OK Google".
- 📵 In XiaoAI settings (if any), turn off Voice Activation.
- 🔇 Make sure that the Assistant History section prohibits the retention of audio recordings.
Once these functions are disabled, the microphone will only be activated when you launch the recording app or make a call, which significantly increases privacy, especially in the bedroom or meeting room.
Settings → Google → Settings for Google apps → Search, Assistant and Google Lens → Google Assistant → All settings of Assistant → Google Assistant → Phone → Okay, Google → Turn off💡
If you use headphones that support voice commands, disabling the assistant on your phone may make it impossible for you to activate them with your voice, but controlling the buttons will remain a workaround.
Blocking access via Do Not Disturb mode and scenarios
Android has a Do Not Disturb mode that has been expanded in modern versions of MIUI and HyperOS, and while its primary purpose is to block notifications and calls, it can also limit the sensors and microphones of selected applications at specific times.
Using automation or scripts, you can set up your phone so that at night or during meetings, microphone access for all third-party applications is blocked automatically, requiring you to create a special profile in the Security app or through standard automation scenarios.
This is convenient because you don't have to manually check your settings every time you want to, and the phone falls asleep when you want to, and it's especially useful for parents who want to make sure that their apps don't record while their child is playing.
| Mode of work | Impact on the microphone | Where to set up |
|---|---|---|
| Don't disturb. | Blocks sounds, but not always access to the microphone | The curtain panel |
| Flight mode | Disable data transfer, microphone is local | The curtain panel |
| Automation scenarios | Completely block access on schedule | Security Annex |
| Guest mode | Limits access to data and functions | Settings → About the phone |
It's worth noting that the standard Do Not Disturb mode is not a full-fledged microphone locker; it creates silence for the user rather than for the device, and for real protection, it's better to use specialized scenarios or manual permissions disable.
☑️ Checking privacy settings
Hiding the recording indicator through the engineering menu (Advanced)
For advanced users who want to not only control but also visually hide the fact that the microphone is working (for example, so that the indicator does not burn when using the recorder for personal needs), there are deeper settings. However, it is worthwhile to understand that completely disable the security indicator introduced by Google without root rights and modification of system files is almost impossible in modern versions of Android.
However, in some versions MIUI The indicator can be controlled through special codes or ADB-And the most common way to do this is to hide the icon in the status bar, but not to actually stop recording.
Use of the ADB-commands to hide the indicator can lead to unstable system operation or violation of security rules of Google Play Protect. therefore, this method is recommended only for test devices or experienced users who understand the risks. Standard means of the system to hide the green dot when recording is active is not possible – this is a requirement of certification. GMS.
adb shell settings put privacy_indicator_enabled 0The above team is an example and may not work on current HyperOS firmware, as Google closes these vulnerabilities in every security update.
⚠️ Note: Attempts to disable system security indicators through ADB or root rights may disrupt applications that require system integrity verification (banks, payment systems) and do so only at your own risk.
What is ADB?
Physical Protection and Periphery
If software methods don't seem reliable enough, there's always the option of physical locking. For Xiaomi smartphones with a 3.5 mm connector or USB-C, you can use special jammers. These devices physically open the microphone circuit when connected.
There are also external sound cards and headsets with a hardware mute switch. By connecting such a device via OTG or Bluetooth, you can be sure that the phone's built-in microphone is not being used, as the system redirects the audio input to an external device that you physically control.
This is the only way to guarantee 100% impossibility of recording, since the code cannot bypass the physical break of the chain, which is especially true for journalists, lawyers or people working with state secrets.
- 🔌 Use muffler plugs for a 3.5mm connector (if any).
- 🎧 Apply Headsets with a Physical Microphone Shutdown Button.
- 📱 Consider using external USB-switch-on.
- 🛡️ Glue microphone holes (not recommended, may worsen sound when calling).
Physical protection is a last resort, but it gives you complete peace of mind, and combining physical techniques with a competent MIUI software setup creates layered protections for your privacy.
💡
The combination of MIUI software restrictions and physical locking through external devices provides the highest level of protection against listening.